Yes, it's Y
As I noted in Battery Switch: Field Disconnect Protection
, our battery switch needs replacing. My current thinking is to go with the Blue Sea Systems Add A Battery
system, which consists of their e-Series Battery Switch Dual Circuit Plus [tm]
and their 7610-SI-Series Automatic Charging Relay
This solution is affordable. The idea of not having to deal with the whole "1/BOTH/2" thing is attractive, yet one can still combine in an emergency. The only down-side to that solution I can see is if you wanted or needed to start off only the house bank, for example. But I suppose, in such a rare circumstance, you could always go down below and do some manual re-wiring.
The big question is this: We currently have two group 24 batteries. I'm thinking a group 24 battery is fine for starting, but we'll probably want at least a pair of group 27 or group 31 batteries when we someday get into cruising. Will the Blue Sea ACR properly deal with a such a setup?
, it looks like both btrafors and TheFrenchFrog, respectively, are suggesting battery combiners and isolators are an inferior solution. Does this apply to the Blue Sea ACR?
Other info: Boat has a Xantrex TrueCharge 10TB charger and, I assume, the original Motorola 35A alternator. I realize both of those are under-powered. One thing at a time